body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: darkslategrey;
}
canvas {
  border: 1px solid black;
}
#status {
  margin: 10px;
  text-align: center;
}
#restartButton {
  display: none;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  margin: 10px auto;
}